When you save email conversations to OneDrive, you can select from the following options for the format of email message filenames:

1. date [from] subject
2. [from] date subject
3. date subject
4. [to] [from] date subject

date [from] subject

For example, if you select three email conversations:

…each conversation is saved using a date [from] subject format:

[from] date subject

For example, if you select three email conversations:

…each conversation is saved using a [from] date subject format:

date subject

For example, if you select three email conversations:

…each conversation is saved using a date subject format:

[to] [from] date subject

For example, if you select three email conversations:

…each conversation is saved using a [to] [from] date subject format: